NIL HEARDRECEPTION LOG

DWD Hamburg RTTY weather DDH7

tier A · data

7644.5 kHz USB · 2026-10-06 05:51:34Z · 09:16 · received at South West England, UK

Spectrogram of DWD Hamburg RTTY weather DDH7, 7644.5 kHz USB, 2026-10-06 05:51:34Z, 09:16: data 86% · morse 14% · tone 1274 Hz · keying 11.86 Hz depth 0.91
spectrogram 0–6.0 kHz · analysis blocks: morse data
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 9.8 MB ⤓ Opus 2286 kB { }
What was heard
data 86% · morse 14% · tone 1274 Hz · keying 11.86 Hz depth 0.91 — dominant tone 1274 Hz, keyed at 11.86 Hz (depth 0.91). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, South West England, UK (IO80qr) · Switched · reported SNR 35 dB — thanks to the operator. Receivers
Provenance
sha256 cf08fb8c4be245969817d45c4562ecfcae45f22eb3c2c8a3f07e946ba696aa6a
source 09:16 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-06T0551Z-7644.5-rtty-7646
Heard in the record
— linked once the record exists.
Licence
CC BY 4.0 — credit NIL HEARD / Reception Log. The recording is ours; the transmission is somebody else's. Descriptions describe sound, never content — why.
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